UV-B irradiation can help – healing practice

COVID-19: UV rays for the immune system

Various scientific studies have provided evidence that UV radiation fighting through that Coronavirus Disease triggered by SARS-CoV-2 COVID-19 could help. A new study now proves this UV-B rays in the treatment of coronary patients can be helpful.

The number of people infected with the corona is on the rise. And there are still severe cases of COVID-19 whose optimal treatment is still being researched. An Austrian study investigates how UV-B exposure affects patients’ health. The results of the pilot study published in the journal “Experimental Dermatology” give reason for optimism.

Balances the immune system

To die Treatment of severe cases of COVID-19 in the hospital is still a great challenge more than two years after the start of the pandemic. Doctors around the world are looking for effective, simple and practical solutions to best increase the chances of becoming seriously ill.

“An option that has already proven itself in other diseases with excessive immune reactions is the so-called narrow band UV-B therapy (NB-UV-B, narrow band UV-B)”, explains Univ.-Prof. Dr.med.univ. Peter Wolf of the University Clinic of Dermatology and Venereology of the Medical University (Med Uni) of Graz in a statement.

deceased in connection with the COVID-19 disease they often correlate with a derailment of the immune system.

“That disturbed immune system it can be brought back into balance with narrow band UV-B therapy. The treatment has already shown success in other diseases such as graft versus host disease (GVHD) or skin cell lymphoma “explains the doctor.

“Furthermore, this form of therapy is still the state of the art in the treatment of psoriasis (psoriasis), especially in the exanthematous forms.”, according to Lupo. The study, which has completed its pilot phase, shows that UV-B therapy in the recovery of COVID-19 patients can help.

Narrow band UV-B treatment

For the study, 30 patients were severe forms randomly assigned to one of two groups by COVID-19. One group was treated with narrowband UV-B, the other received placebo light irradiation.

According to the information found treatment in addition to usual medical treatment, including antiviral drugs.

Therapy was performed with a mobile UV-B device and a irradiation approximately 27% of the body surface area in the patient’s bed for a total of eight days. A first cut-off point for the analysis was set 28 days after treatment. After this time, it was checked how the disease was progressing in the study patients.

Probably not directly related to vitamin D

In the narrow band UV-B treated group, deceased two people (13.3 percent), in the placebo group there were five (33.3 percent).

The exact mechanism of action of UV-B therapy in COVID-19 is still under investigation at the immunological level, but does not appear to be directly involved. Vitamin D related, as Peter Wolf believes based on the laboratory results evaluated so far.

According to the scientist, the results of the study perfectly match the fact that, according to a meta-analysis, low UV values ​​in the environment and in the season are directly associated with increased morbidity and mortality of patients with COVID-19 correlate.

The advantage of UV-B treatment is next to its own effectiveness also in its safety, relatively low costs, ease of use and the possibility of carrying out this therapy in less equipped hospitals or in poorer regions.

The results of this first phase of study now serve as the basis for a planned, larger study, which aims to provide more accurate and definitive data. (A.D)

Information on the author and source

This text corresponds to the specifications of the specialist medical literature, medical guidelines and current studies and has been verified by medical professionals.


  • Medical University of Graz: Radiation against COVID-19: UV-B radiation in the treatment of COVID, (accessed: 2 July 2022), Medical University of Graz
  • Frank H. Lau, Catherine E. Powell, Giacomo Adonecchi, Denise M. Danos, Andrew R. DiNardo, Robert J. Chugden, Peter Wolf, Carmen F. Castilla: results of the pilot phase of a prospective randomized controlled study of ultraviolet B a narrow band phototherapy in hospitalized COVID-19 patients; in: Experimental dermatology, (veröffentlicht: 31.05.2022), Experimental dermatology

Important note:
This article contains general advice only and is not to be used for self-diagnosis or treatment. It cannot replace a visit to the doctor.

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